Welt grooving and beveling machine



Jan. 14; 1930. J. GOULDBOURN ET AL 1,743,208

WELT GROOVING AND BEVELING MACHINE File J n 1927 4 Sheets-Sheet 1 Figtl.

/N//ENTOR5 J 1930. J. GOULDBOURN ET AL 1,743,208

WELT GROOVING 'A ND BEVEL I NG MACHINE Filed J ne 1 1927 4 Sheets-Sheet2 1930- J. GOULDBOURN ET AL 1,743,208

WELT GROOVING AND BEVELING MACHINE Filed June 11, 1927 4 Sheets-Sheet 3Jan. 14, 1930. J. GOULDBOURN ET AL 1,743,208

WELT GROOVING AND BEVELING MACHINE Filed June 11, 1927 4.S h'eetsSheet 4Patented Jan. 14, 1930 UNITED STATES PATENT OFFICE.

JOSEPH GOULDBOURN AND WILFR-ID IHOMAS MINET'I', OF LEICESTER, ENGLAND,ASSIGNORS TO UNITED SHOE MACHINERY CGBEFORATION, 0F PATEBSON, NEW J EB-SEY, A CORPORATION OF NEW JERSEY WELT GROOVXNG AN D BEVELING MACHINEApplication filed June 11, 1927, Serial No. 198,239,

This invention relates to welt grooving and beveling machines of thetype generally employed in connection with the preparation of weltingfor use in Goodyear welt shoes and is herein shown as embodied in amachine of the same general character as that disclosed in a co-pendingapplication, Serial No. 65,678, filed October 29, 1925, in the name of\V. T. Minett, who is also one of the pres ent applicants.

A. machine organized as set forth in the application above referred tois adapted to reduce a strip of welting to substantially uniformthickness, to form a groove in the flesh side of thestrip, and to form abeveled edge at the grain side of the strip. For poses, such machinesare provided with three feed rolls comprising a work supporting roll, apresser roll located above the supporting roll and arranged toco-operate with the latter to feed the welting strip to the reducingmeans, and a roll which is located beside the supporting roll and whichco-operates therewith to feed the reduced strip to the grooving andbeveling instrumentalities.

One object of the present invention is to improve machines of this typethe better to adapt them to feed and operate upon welting strips ofdifierent thickness, as well as upon a welting strip which variessubstantially in thickness throughout its length.

With this object in view, and in accordance with one feature of theinvention, the illustrated machine for operating upon welting stripscomprises a work supporting roll, two feed rolls arranged to co-operatewith the work supporting roll, supports for said feed rolls capable ofbeing adjusted to provide two feeding stations of variable gap betweenthe work supporting roll and said feed rolls, and connections betweensaid supports constructed and arranged to transmit. adjustments from oneto the other for the purpose of facilitating the feeding of the workthrough the machine. Thus the invention provides a machine in whichadjustments imparted to one of the feed rolls are imparted automaticallyto the other of said rolls. In the illustrated machine a reducing orevening knife is associated with one of the feed rolls these purand inGreat Britain July 2, 1928.

above referred to and arranged for adjustment in unison therewith and agrooving knife is connected with the other feed roll in such a mannerthat when the said feed roll is adjusted, a proportionate adjustmentwill be imparted to the grooving knife. The

illustrated reducing knife and the associated feed roll are capable ofbeing adjusted in unison manually, in accordance with the thickness towhich it is desired to reduce the work, and of adjusting themselves to alimited extent in response to variations in the thickness'of the work asit is fed into the machine, andthe construction and arrangement is suchthat adjustment of the grooving knife and its feed roll is effected byadj ustment of the other feed roll and the reducing knife, theadjustments of the tWo feed rolls being similar and the adjustment ofthe grooving knife being such that the depth of the groove formed bytheknife will vary by substantially one-third of the increase or decreasein the thickness of the strip. As shown, an indicator. is provided tofacilitate manual setting of the reducing knife and its associated feedroll.

The invention further consists in features of construction andcombinations and arrangements of parts hereinafter described andclaimed.

The invention will be explained with reference to the accompanyingdrawings, in which Fig. 1 is a view partly in front elevation and partlyin section, of an illustrative machine embodying the present invention;

Fig. Q'is a detail view in side elevation of certainparts shown in Fig.1;

Fig. 3 is a view. in elevation of the lefthand side of the machineviewed from the left of the position shown in Fig, 1;

Fig. 4 is an enlarged detail view partly in section showing the positionof various feed 5 is a view in elevation of the righthand side of themachine, portions of the frame being broken away.

The illustrated embodiment of the invention comprises a frame 10 inwhichthere is justed along the driving shaft 12..

rotatably mounted a driving shaft 12 having on itsrear end fast andloose pulleys 14, 16, by means of which the shaft maybe driven. Thedriving shaft 12 has mounted upon its forward end a knurledwork-supporting roll 18 which, by meansof a key and slot arrangement 19,may be slidingly ad- As shown in Figs. 4 and 5, the work supporting rollwithstanding the presence therein of the plate 22 is arranged to extendand is fixed to a bracket 26 formed on the groove 20. The hookedextremity of the hearing plate 22 extends downwardly to a little below ahorizontal plane passing through the axis of the roll 18 and is cut awayat 24 to form a straight edge which slopes slightly fromthe outer-edgeof the bearing upwardly to the inner edge thereof. At the side of theroll 18 opposite the hooked end, the bearing downwardly forward end of ashaft 28 (Fig. 5) which is slidingly mounted in the machine frame 10.

bracketan d is equipped at its forward end The shaft 28 is provided witha key 29, sliding in a keyway 31 formed in the frame 10, to preventrotation of said shaft. The bracket'26 has rotatably mounted in it ascrew extending parallel to the shaft and threaded into the machineframe 10. The screw 30 is prevented from moving lengthwise in the with ahand wheel 82 by means of which it may be rotated to adjust thework-supporting roll 18, the bracket 26 and the bearing plate 22 towardor away from the machine frame and thus to adjust a member carried bythe bracket 26 for a purpose to be hereinafter explained. A hand screw34 (Fig. 1) is threaded into the frame 10 and bears against the shaft 28to lock the latter in a desired position of adjustment;

Mounted closely in co-operative relation with thework-supporting roll 18is a knife (Fig. 4) having a straight cutting edge which is arranged tobevel thewelting strip W, on the side of the strip that engages thesurface ofthe work-supporting roll, imme diately after the strip hasbeen fed across said roll. The beveling'knife 40 is mounted for verticaladjustment relatively to the work-supporting roll 18 and to this end, as

shown in Fig. 4, the knife 40 is secured to the Y upper end of a spindle36 adjustably seated 460 in the bracket 26. A screw 38 is threaded intothe bracket 26 beneath the spindle 36 and may be adjusted vertically toimpart corresponding uniform adjustmentto the beveling knife 40. Asshown in Fig. 4, the beveling knife is mounted at an angle to the ver bymeans of .a locking tical, and when properly positioned for the cuttingoperation will lie with a considerable portion of its cutting extremitylocated within the groove 20 and out of the path of feed of the strip W,thereby reducing to a minimum any tendency on the part of the strip tolag or buckle by reason of frictional engagealso the knife 40transversely of the direction of feed of the welting strip to locate theknife in such a position relatively to the strip as will produce a bevelof a desired width.

To co-operatewith the work-supporting roll 18 in feeding the strip ofwelting through the machine, there is located above the work supportingroll a yieldingly mounted presser roll 42 having small teeth on itsperiphery. This presser roll is fixed on the forward end of a shaft 44extending parallel to the shaft 12 and is driven by means of gears 46,48 from the shaft 12 so that the two rolls 18 and 42 are driven at thesame peripheral speed. The shaft 44 v roll support 50 (Figs. 1 and 5)which is pivoted on a horizontal shaft 52 (Fig. 1) eX- tending parallelto the two shafts 12, 44. The shaft 52 is mounted in an adjustable frame54 having a dovetailed guideway 56 (Fig. 3)

. arranged to receive a wedge-shaped guide 58 formed on the machineframe 10. The presser roll 42 is urged yieldingly toward the worksupporting roll 18 by means of a spring 60 (Fig. 1) surrounding a rod 62carried by the adjustable frame 54. The rod bears at its lower end onthe presser roll support 50 and its upper end is guided in a sleeve 64which is threaded into an arm 65 projecting from the adjustable frame54. The spring 60 bearsagainst a collar 66 on the rod and against thement of the presser roll 42 under the influence 7 .of its spring 60. Thead usting screw 70 may be lockedin a desired position of adjustmentscrew 72 located in the arm 68. The lower portion of'the adjustableframe 54 is arranged to carry a horizontally extending evening knife 7 4having its cutting edge positioned agalnst a stop 7 6 laterally offsetfrom the evening roll 42 andmounted on a block on the adjustable frame54.

In order that the adjustable frame 54, and with it the presser roll 42and the evening knife 74, may

beadjusted toward or from the L is rotatably mounted in a presser worksupporting roll 18 according to the thickness to which it is desired toeven the work, the frame 54 has rotatably mounted in it near its upperend a hand screw 78 which at its lower extremity is threaded into theflange on the collar presses the adjustable frame downwardly. Thedistance between the lower face of the hand wheel 84 and the upper faceof the block 80 is slightly greater than the thickness of the flangedcollar 86. The compression spring 88 holds the collar down against theblock 80 and this spring is somewhat weaker than the spring whichpresses down the evening roll.

To facilitate the operator in adjusting the evening knife and the rollto even the work to the desired thickness, an indicator is providedwhich comprises a bell crank lever 90 pivoted to a plate 92 which isfixed on the frame 10 of the machine. One arm of the bell crank leverhas the formation of a pointer and is arranged to swing over indicatingmarks 94 formed on the plate. The other arm of the bell crank lever isslotted and straddles a pin 96 fixed in the block 80. Thusverticalmovement of the adjustable frame 54 and the block carrying the pin 96causes the bell crank lever 90 to swing, thus indicating the magnitudeof adjustment of the frame.

As already pointed out, the construction and arrangement of the parts ofthe machine are such that by adjusting the screw 7 8'the position of thepresser roll heightwise of the work supporting roll may be varied. Inthe operation of the machine, when a welting strip W is presented to thework supporting and presser rolls, the presser roll 42 and the eveningknife 7 4 are raised together against the action of the light spring 88until the flanged collar 86 engages the under side of the hand wheel 84which determines the thickness to which the welting strip is to beevened.

Thereafter the presser roll may be further raised against the action ofthe strong spring 60 to allow for greater increases in the thickness ofthe welting strip, and, as above pointed out, during this furthermovement the knife 7 4 is fixed against further upward movement by meansof the collar 86 engaging the hand wheel 84. The presser roll 42 and theknife 74 are normally set down close to the supporting roll 18 with thelowermost portion of the presser roll slightly below the knife edge sothat if a portion of the strip W is thinner than the thickness to whichthe strip is to be evened and for which the hand wheel84 has been set,such thin portion will be fed by the presser roll under the pressure ofthe light spring 88 without being evened; the evening commencing onlyafter the collar 86 engages the hand wheel 84.

In order to maintain proper clearance between the work supporting roll18 and the knife 40 behind the edge of the knife, as the knife israised,- the slide 58 along which the adjustable frame 54 moves, hasbeen arranged at an angle to the vertical so that asthe knife is raisedit also moves away from the work supporting roll.

At the left of the work supporting roll, as viewed from the front inFigs. 1 and 4, a feed roll 98, having small teeth formed on itsperiphery, is fixed to the forward end of a shaft 100 extendingrearwardly of the machine parallel to the work-supporting roll shaft 12.The feed roll 98 is driven at the same peripheral speed as the worksupporting roll by means of a gear 102 at the end of the shaft whichmeshes with the gear 46 on the work-supporting roll shaft. The feed rollshaft 100 is rotatably mounted in a feed roll frame or support 104 whichis pivotally and slidably mounted on a horizontally rearwardly extendingshaft 106 fixed in the frame 10 of the machine (Fig. 8). The feed rollframe 104 is formed near its upper end with a pair of lugs 108 which areheld in abutting and interconnecting engagement with depending lugs 110formed on the adjustable frame 54 by means of a spring 112 (Fig. 1)surrounding a rod 114 pivotally connected to the feed roll frame. Therod passes through a web 116 on the machine frame 10 between which andan adjustable hand nut 118 on the end of the rod, the spring isconfined. The interengaging faces on the lugs 108, 110 (Figs. 1 and 3)are so arranged that when the adjustable frame 54 is moved along theslideway 58 by the adjusting screw 84 or by variations in the thicknessof the welting strip, the feed roll frame or support 104 is swung aboutits pivot shaft 106 and the arrangement is such that the presser roll 42and the feed roll 98 are moved the same distance toward or away from theroll 18.

By reason of providing the above-described interconnections between theadjustable frame 54 and the feed roll frame 104 it will be understoodthat in the initial setting of the machine to produce a finished weltingstrip of a desired thickness, the size of the gap between the feed roll98 and the work supporting roll 18 will vary directly in equalproportion to the size of the gap between the presser roll 42 and thework supporting roll 18. The size of the first-named gap islikewisedependent upon the setting of the evening knife 74 (by means of the handwheel 84) relatively to the work supporting roll 18.

After the machine has been set to produce a welting strip of desiredthicknessand the knife 132 of the illustrated machine is conoperation ofthe machine has commenced, the

further movement in a direction away from the roll 18, thereby insuringthatthe evened Welting strip, to the thickness of which the rolls 18 and98 have been adjusted, will be fed firmly between said rolls. I Fixed atthe front of the feed roll support or frame 104 is a vertical bearing126 (Figs. 1 and 4), (similar in function to the bearing platehereinbefore described as being positioned in the groove 20 in the worksupporting roll 18) which surrounds the shaft 100 and has the upperportion of its edge shaped to conform to the periphery of the feed roll98, thereby forming a continuous work-supporting surface across theupper and forward portion of that roll. The forward portion of thebearing 126 is cut away about the level of a horizontal plane passingthrough the axis of the feed roll,- as shown in Fig. 4, so as to form astraight edge 128 below which is located a grooving knife 132.

As shown in Fig. 3, the feed rol 98 is com-- prised of a main bodyportion and a collar 130 having a knurled periphery of the same diameterof the feed roll to support the front edge of the welting strip W. Thebearing plate 126 is slightly thickner than the grooving knife 132 and,if it is desired to change the width of groove and, therefore, thethickness of the grooving knife, the collar 130 at the front of theplate may be repositioned to enable a thicker or a thinner bearing plateto be employed. r

The provision of the peripheral groove in the work supporting roll 18,and the groove between the main body portion of the feed roll 98' andthe collar portion 130, enables the beveling knife 40 and the groovingknife 132 to be positioned partially within the rolls,

and immediately adjacent to the bite of the rolls without interfering inany respect with the feeding action of the machine. Also the 7 bearingplates 126, 22 afford a firm backing for the strip as it is being red,and provide a continuous and uninterrupted surface across the portionsof rolis 18, 98 that come into en gagement with the strip.

The mechanism for operating the grooving trolled by the variations inthickness of the strip of welting in such a manner that the groovingknife is caused to effect the grooving of the welting to a depththatvaries by a predetermined fraction of the variations inthicle nessof the welting. That is, if the thickness increases, the depth of thegroove increases but to a less degree, and if the thickness decreasesthe depth of the groove decreases but also to a less degree. To effectthe desired grooving of the welting strip, the grooving knife 132. isfixed in an arm 134 (Fig. 1) pivotally and lidably mounted onashorizontalrearwardly extending shaft 136 which is fixed in the machineframe 10. The grooving knife arm 134 has in it a slot which straddles astud 137 fixed in the grooving roll frame 104 and in the illustratedembodiment of thcinvention, the arrangement is such that, as thegrooving roll is moved toward or away from the work supporting roli, thein the corresponding direct-ion substantially two-thirds of thatdistance. Thus the depth of the groove varies by A; of the variations inthe thickness of the strip. The stud in the grooving roll frame hasmounted on it an ec; centric bushing 138 which engages the slot in therooving knife arm 134 so that by ro-' tating the bushing the groovingknife edge may be set in any desired initial position of adjustmentreiatively to the point of the feed roll 98 nearest to the worksupporting roll 18. Thisarrangement permits the grooving knife to beadjusted at the outset to produce a groove of a desired depth andthereafter the depth will vary in accordance with variations; in thethickness of the strip, as before pointed out. The portion of thegrooving knife arm which has in it the slot fits betwen a face on thegrooving roll frame and a collar 140 formed on the bushing by means ofwhich the bushing may be rotated to effect the indicated ustment.

The grooving knife 132 and its supporting arm 134 may be adjustedtransversely of the direction of feed of the welting strip WV to handscrew 124 is threaded into the machine frame 10 and rotation of thescrew imparts lateral bodily movement to the frame 104 and also to thegrooving knife arm 134 which is mounted for free sliding movement alongthe shaft 136 (Fig. 1). l

f In the operation of machines of this character, it is sometimes foundthat the unevened welting strip is at various localities along itslength of a thickness less than that for'which the splitting knife 74,and the rolls 18, 42 and 98 have been set, and in an above paragraph itwas explained that the space between the hand wheel 84 and the collar 86was for the purpose of permitting the presser roll 42 to move downwardlyunder the action of the light spring 88, thereby decreasing the gapbetween the presser roll and the work supporting roll to feed betweenthe rollsthin portions of the strip. As such portions are grooving knifeis movedbeing fed, the evening knife 7 4 occupies an inoperativeposition and the strip is fed along beneath it. Notwithstanding theundersized thickness of the strip at such localities, it is necessary togroove and bevel the strip throughout its entire length and toaccomplish this, spective of thickness, be fed past the grooving andbeveling knives in a firm and unyielding manner. Accordingly, the feedroll 98 is mounted in such a manner that it may be moved toward and fromthe work supporting roll 18-to feedthe strip irrespective of variationsin the thickness of the strip. It has been pointed out that, upon a thinportion of the strip passing between the presser roll 42 and the worksupporting roll 18, the adjustable frame 54 will move downwardly underthe influence of the light spring 88, and it folows that the lugs 110carried by the frame 54 will move to the right of the position shown inFig. 1. This movement of the lugs 110 allows the feed roll frame 104carrying the lugs 108 to move to the right towards the work supportingroll 18 to decrease the feed gap between the two rolls 98 and 18,thereby feeding firmly the thinned portion of the strip. WVhen the feedroll frame 104 moves thus, the grooving knife 132 moves two-thirds ')fthe distance to decrease the depth of the groove by one-third of thedecrease in thickness of the strip. 7

To assist in feeding the welt strip W through the machine and across theperiph- :ries of the above-described feeding rolls,

there are provided certain gaging devices which will next be described.The welt strip is fed to the evening rolls along a support 142 at theright of the machine and passes lown, after the evening operation, overthe work supporting roll 18 and between that roll'and the grooving feedroll 98 where it is first grooved and then beveled. The support 142 hasat the front of it a fixed edge guide 144 andhas on it an adjustable andyielding edge guide 146 (Figs. 4 and 5) between which guides the strippasses to th'e evening rolls. The edge guides are both carried down asclose as possible to the bite of the work supporting and grooving rollsand the fixed guide is cut away so as to permit of the axial adjustmentof the work supporting roll 18. The adjustable guide 146 is fixed orformed out-he forward'end of a rearwardly extending rod 148 which isslidable in the machine frame. The rod in diameter and has" on it aspring 150 (Fig. 5) which is confined between the shoulder 152 formed bythe reduction and a block 154 slidingly mounted on the reduced portion156 r and limited in its rearward movement by a nut 158 and a lock nut160 on the end of the reduced portion 156. The block hason its upperface rack teeth 162 which are engaged by a pinion 164 formed on theinner end of the strip must at all times, irrethework-supporting nearits rear end is reduced a horizontal shaft 166 (Fig. 1) extending towards the right-hand side of the machine; The outer end of the shaft hasfixed to it a hand lever 168 by which the pinion 164 may be rotated tomove the block 154 and guide 146 forwardly or rearwardly of the machinetowards or from the fixed guide 144 while To deflect the leading end ofthe welt strip downwardly after it leaves the evening rolls, there isprovided 4) the thin end of which is held yieldingly up against theunder side of the knife.- Stripper fingers 182 are provided to loosenthe scrap welting from the presser roll 42, and a plate 184 carried byan arm of the machine frame 10 provides a guideway for carrying thescrap material away from the working instrumentalities of the machine.

While the illustrated embodiment of the invention has incorporated in itevening, grooving and beveling knives, it is to be recognized that anyone of the knives might be used alone or any two might be used incombination, as may be desired, without in any respect departing fromthe invention.

Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is I 1. In a machine of the classdescribed, a work-supporting operating feed rolls, said feed rolls beingso constructed and arranged that adjustments imparted to work-supportingroll are transmitted automatically to the other of said rolls.

2. In a machine of the class described, a work-supporting roll for usein feeding a welting strip, a presser roll arranged to hold the strip infirm engagement with the worksupporting roll, a support for the presserroll,1 a feed roll arranged to co-operate with the work-supporting rollin feeding the welting strip past an operating instrumentality, asupport for the feed roll, means for adjusting the position of thepresser roll relatively to roll, and connections extending between thepresser roll support and the feed roll support to transmit to thefeed'roll adjustments that are imparted to the presser roll. s 3. In amachine of the class described, a

feed rolls relatively to the work-supporting a tapered finger 180 (Fig.i

roll and a pluralityof coroll, and connections between said feed rollsupports to transmit adjustments from one feed roll to the other. I

4;. In a machine of theclass described, a work-supporting roll, apresser roll located above said work-supporting roll, a feed rolllocated laterally of said worlnsupporting roll, separate supports forthe presser and feed rolls, and connections extending between saidsupports so constructed and arranged that vertical adjustmentsimpartedto said presser roll'result in lateral adjustments of equal amountsbeing imparted to said feed roll.

5". In a machine of the class described a work-supporting roll and afeed roll arranged to co-operate in feeding a welting strip, an eveningknife located in proximity to the bite of said rolls and arranged toreduce the wel ing strip to a substantially uniform thickness throughoutits length, a second feed roll arran ed to co-o erate with the work suort-' ingroll at a point spaced fromthe' knife, a support for the secondfeed'roll, means for adjusting the position of theevening kniferelatively to the work supporting roll to produce an evened strip of adesirec' thickness, and connections between said evening knife and thesupport for the second feed roll constructed and arranged to transmit tosaid roll adjustments imparted to the evening knife,

'6. In a machine of the class described, a

work-supporting roll, a plurality of operating instrumentalities locatedat spaced intervals along the periphery ofthe work-supporting roll, andconnections extending betweensaid opera-ting instrumentalities soconstructed and arranged that movement mparted toone of said operatinginstrumentalities relatively to'the work-supporting roll results in amove ment being imparted to the other of said operatinginstrumentalities.

7. Ina machlne of the class described, a

work-supporting roll, a plurality of adjustknife and said grooving knifeso constructed able operating instrumentalities located at spacedintervals along the periphery of the work-supporting roll, andconnections be and arranged that variation ustment of said evening kniferelatively to the Worl-:-supporting roll results in a predeterminedfraction ofsaid movement being imparted to se id 9. In a machine of theclass described,;a

workI-suporting roll, a feed roll arranged to.

co-operate with said work-supporting roll, a presser roll also locatedin co-operat1ve relation with said work-supporting roll, manuallyoperable means for adjusting said presser roll relatively to saidwork-supporting roll, means automatically to impart correspondingadjustment to said feed roll, and means tending yieldingly to maintainsuch adjustment of the feed roll relatively to the work-supportirigroll.

10. Ina machine of the class described, the combination of awork-supporting roll, a. presser roll located in proximity to theworksupporting roll, a support for the presser roll, a feed rollarranged to cooperate with the work-supporting roll at a pointremotefrom the work-supporting roll, a support for thefeed roll, andconnections extending between said supports so constructed and arrangedthat when movement is imparted to the presser roll the feed roll willmove with the presser roll an equal distance relatively to the worlsupporting roll and will thereafter maintain I a fixed positionrelatively to the work-supporting roll independently of continuedmovement of the presser roll in the same direction.

11. In a machine of the class described, the combination of awork-supporting roll, a presser roll located in proximity to theWorksupporting roll, a grooving knife located in proximity to thework-supporting roll at a point remote from the p'ressen roll, andconnections extending between the presser roll and the grooving knife soconstructed and arranged that when movement is imparted to the pre'sserroll relatively to the. work-supporting roll the grooving knife willmove a predetermined fraction of such distance relatively to thework-supporting roll and thereafter maintain a fixed positionindependently of continued movementof i g the presser roll in the samedirection;

12. In a machine of the class described, a work-supporting roll, apresser roll located'in proximity to, the worl{supporting roll, asupport for the presser roll, an evening knife located adjacent to thelpresser roll, a feed roll located in proximity to said work-supportingroll at a point removed from said presser roll, a support for said feedroll, a grooving knife located adjacent to the feed roll, andconnections extending between'the presser roll support, the eveningknife, the feed roll support and the grooving knifeso constructed'andarranged that when movement is imparted to the presser roll and theevening knife the feed roll and the grooving knife will move with'thepresser roll a predetermined distance and thereafter maintain a; fixedposition relatively to the work-sup a member porting roll independentlyof continued movement of the presser roll inthe same direction.

13. In a machine of the class described, a work-supporting roll, apresser roll arranged in co-operative relation with said worksupportingroll, an evening knife arranged to co-operate with said presser roll toreduce a welting strip to a desired thickness, said even ing knife beingso arranged relatively to the presser roll that it will cease to operateupon the welting strip when the thickness of said strip is less than thethickness it is desired to impart to the strip, a grooving knifearranged to operate upon the welting strip irrespective of variations inthe thickness of the strip, one of said knives being adjustable, andconnections between said knives for transmitting adjustment from one tothe other.

14. In a machine of the class described, a work-supporting roll, apresser roll and a feed roll each arranged in co-operative relation withrespect to said work-supporting roll, an evening knife associated withsaid presser roll, a grooving knife associated with the feed roll, meansto adjust simultaneously the positions of said presser roll and saidevening knife and of the feed roll and said grooving kn fe relatively tothe worksupporting roll, and means for indicating visibly the extent ofsaid adjustment.

15. In a machine of the class described, a work-supporting roll, twoco-operating feed rolls spaced apart about the periphery of thework-supporting roll, a support for one of said feed rolls, a supportfor the other feed roll, means for adjusting one of said supportsrelatively to the other support, and connections extending between saidsupports to transmit adjustments from one feed roll to the other, meansto adjust one feed roll,'and means for indicating visibly the amount ofsaid adjustment.

16. In a machine of the class described, a

roll for use in feeding a welting strip, an

operating instrumentality located within a groove formed within saidroll, and a bearing member arranged substantially to fill the portion ofsaid groove not occupied by said operating instrumentality.

17. In a machine of the'class described, a roll for use in feeding awelting strip, an operating instrumentality located within a grooveformed within said roll, and a bearing having a portion of itsperipheral contour coincident with the surface contour of said rollarranged substantially to fill the portion of said groove not occupiedby said operating instrumentality.

18. In a machine of the class described, a plurality of co-operatingrolls, grooves formed within the surface of said rolls, operatinginstrumentalities located within said grooves, and means also located insaid grooves to co-operate with the surfaces of said rolls locatedadjacent to said ide a continuous and uninterrupted feeding surfaceacross the effective portions of said rolls.

19. In a machine of the class described, a

work sup1 )orting roll, a feedroll arranged to co-operate' with saidwork-supporting roll in feeding a welting strip, grooves formed aboutthe peripheries of and a beveling knife located one within each of saidgrooves immediately adjacent to'the bite of said rolls. 7

20. In a machine of the class described, a work-supporting roll having abeveling knife associated therewith and extending within a groove formedtherein, a feed roll having a grooving knife associated therewith andextending within a groove formed therein, means to impart lateralmovement to the work-supporting roll and the beveling knife to adjustthese members transversely of the direction of feed of a welting stripto impart to the strip a beveled edge of a desired width, and means toimpart similar adjustment to the feed roll and grooving knife to impartto the strip a groove located at a desired distance from the edge of thestrip.

21. In a machine of the class described, a work-supporting roll, apresser roll located in co-operative relation with respect to theworksupporting roll, a fixed edge gage, a yielding edge gage arrangedtoco-operate with said fixed gage in guiding a welt-ing strip between saidrolls, means including a rack and pinion for adjusting said yieldingedge gage, and means to lock said rack and pinion to maintain said edgegage in a desired position of yielding adjustment.

22. In a machine of the class described, a plurality of co-operatingrolls, a fixed edge gage, a yielding edge gage arranged to cooperatewith said fixed gage, means to adjust grooves to prosaid rolls, and agrooving the yielding edge gage relatively to said rolls,

and means for indicating visibly the adjustment of said yielding gagerelatively to said rolls.

28. In a machine'of the class described, two feed rollsfor feeding awelting strip having variations in thickness throughout length, meansrolls toward the other, an adjustable stop for limiting said movement,means to operate upon said welting strip to form. a groove therein thedepth of which varies by a predetermined fraction of the increase ordecrease in the thickness of the strip, and means con trolled by thethickness of the strip for adjusting said stop.

2 In a machine of'the' class described, strip reducing means, means tobevel a strip along one edge thereof, adjustable means for feeding astrip to thereducing means, and means controlled by adjustment of saldfeeding means to form in a strip a groove the its tending to move one ofsaid isle depth of which varies systematically with variations in stripthickness. l

In a machine of the class described, means for feeding a welting strip,an adjustable frame supporting the feeding means,

means to bevel the welting strip along one edge thereof, and meanscontrolled by adjustment of saidiframe for operating upon the welting toform therein a groove the depth of which varies systematically withvariations in strip thickness.

26. In a machine of the class described, a work supporting roll,two feedrolls arranged to co-operate with the work supporting roll,

supports for said feed rolls capable of being adjusted to provide twofeeding stations of variable gap between thework supporting roll andsaid feed rolls, and connections between said supports constructed andarranged to transmit adjustments from one to the other.

27. In a machine of the class described, three fed rolls two of whichare arranged to cooperate with the third at different locations aboutthe periphervof the later to afford two feeding stations of variablegap, instrumentalities located at said feeding stations for operatingupon a welting strip being fed therethrough, and means responsive tovariations in thickness of the strip at one feeding station forcontrolling the width of the variable gap at the other feeding station.

28.: In a machine of the class described, three feed rolls twoof whichare arranged to co-operatewith the third at different locations abouttheperiphery of the latter to afford. two feedingstations of variable gap,a knife spaced from a feed roll at one of said feeding stations forreducing the thickness of a strip of welting fed by said rolls, saidknife being capable of adjustment to vary the thickness of the strip,and connections between the knife and a fed roll located at the otherfeeding station for varying the width of the gap at the latter inproportion to the distance between the knife and the associated feedroll.

29. In a machine of the class described,

three feed rolls two of which are arangedto co-operate with the third atdifferent loca- 'o; tions about the periphery of the latter to affordtwo fe'eding stations of variable gap, a knife spaced from a feed rollat one of said feeding stations for reducing the thickness of a'strip ofwelting fed by said rolls, said knife being-capableof adjustment to varythe thickness of the strip,

the other feeding station, and connections between said knives foradjusting the grooving V knife to vary the depth of the'groove in proportion to thickness of the strip.

In testimony. whereof we have names to thisspecification.

, JOSEPH, GOULDBOURN;

WILFRID THOMAS MINETT.

signed our a grooving knife located at

